Tag: houseextension


Extension Rules You Should Know Of 2022

Here are single-storey and two-storey extension rules explained with planning permission and permitted development rights explained. 

Single-Storey Extension Rules 

  • The extension cannot exceed more than 4 meters in height. 
  • You cannot go beyond the back wall of the original property by more than 4 meters. 
  • You can only cover half the area of land around the original house with an extension. 
  • The extension cannot go forward of the side elevation fronting a highway. So, this means that if you want to build your extension toward the main road you will need planning permission. 

Two-Storey Extension Rules  

  • The extension needs to be a minimum of 7 meters away from the rear boundaries. 
  • If your home is more than one-storey and you decide to extend, you cannot go past the back wall of the house by 3 meters. 
  • The exterior of the extension must be similar looking to the materials of the property. 
  • The ridge and eaves height cannot be taller than the existing house. 
  • The maximum height of the extensions eaves needs to be 3 meters if you are within two meters of the boundary. 

Permitted Development  

Permitted development rights is an automatic grant of planning permission which allow certain building works and changes of use to be carried out without having to make a planning application. This only applies to houses. Whereas, this does not apply to flats, maisonettes or any other type of building. So, always check with your local authority to see if the permitted development rights apply. Permitted development rights are restricted when you live in a  

  • Conservation area 
  • A national park 
  • An area or natural beauty 
  • A world heritage site  

Planning Permission  

Planning permission refers to the approval given by your local authority when you’re wanting to do building works. If you don’t know if what your wanting needs planning permission you should contact your local authority to see if you require permission. You will not need planning permission if you want to build a 

  • Standard loft conversion  
  • Single-storey extension  
  • Replace doors and windows  
  • Install solar panels  
  • Install garden room

However, under certain circumstances these will need planning permission.

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Extensions, House Extension

An Informative Step By Step Guide To An Extension

An extension to your home can be an extremely beneficial investment, especially for those that require more space but don’t want to move to another property. And creating additional living space can add a lot of value to your home.    

Step 1 – getting planning permission –  

The first step to creating an extension is confirming and creating an idea for your project. And then once you have decided on the type and style of the extension you require, you must consider whether or not you are permitted to build.  When it comes to extensions either planning permission will be required, or your plan will be accepted following the rules for permitted development.  What is planning permission? Planning permission is the acceptance by the local authority to go ahead with the requested construction plans of a building.    

Step 2 – permitted development rights –  

Permitted development rights are the entitlement to modify a property without the requirement of applying for planning permission. And generally, extensions to a house are covered by permitted development rights.  This is because you need to make sure the extension is within two meters of a boundary maximum eaves height should be no higher than three meters to be permitted development.  

Step 3 – check your budget –  

When it comes to an extension you need to determine a realistic brief that considers the finances of the project and the length of the construction.  You also need to include fees for the architects and designers. This is because their advice can be invaluable, especially when it comes to getting permission.   

Step 4 – think of the design of your extension –  

It is important that you think thoroughly about the design of the extension. You need to think of how the extension will connect to the house. And for example, if you would like to add on the kitchen would you like it to be exposed to the morning sun, or do you prefer a sunset. So, to help with putting your design on paper, it is a good idea to hire an architect.  

Step 5 – what to be aware of when building an extension –  

Listed buildings and conservation areas may have more specific permitted development rights, compared to normal ones. And you should search for expert guidance when it comes to planning. 

Step 6 – applying to a building regulations officer –  

Once that it is confirmed your extension doesn’t need planning permission or if the plans have been accepted it will need to be approved by a building regs officer.  Drawings will then need to be created by an architect and be submitted.  

Step 7 – party wall act –  

The party wall act ensures that the extension doesn’t exceed the boundary of the neighbor’s property. And the neighbors need to be informed of any proposed work in advance.  A party wall surveyor is responsible for producing a party wall award. This will protect you if any unfortunate circumstances where disputes may arise.  

Step 8 – let the Council know –  

Your local Council has to be informed about the extension plans.  

Step 9 – contact professionals –  

The sooner you get in touch the better it will be for you. You should contact planners, contractors, and builders as soon as possible, to have a clear idea of the scale of the project.  

Step 10 – check insurance –  

You should check whether your house insurance is still valid during construction and if it can be extended to site insurance during the works. You should also check the workers’ insurance to see if it is necessary for your site.  

Step 11 – start building  

An extension in the works

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Extensions, House Extension

What you need to know about a house extension

What is a house extension? 

A extension is built adjoining the existing house. The method of connection requires careful consideration, in particular, openings between the extension and the existing building.   

A house extension can be very attractive to those lacking room inside their home. However, extending your home is likely to be an expensive project. This is because on average a 30 square meter single storey built on a budget cost between £30,000 and £48,000. And if finances can stretch a bit more amid range extension costs between £51,000 and £60,000. 

Without planning permission or neighbor’s permission, the extension must be no taller than 4 meters high and no longer than 3 meters and must be a single storey. And with permission, if your extension is one storey, it can extend up to six meters from the property. However, you can extened a detached house 8 meters.

Rules for a extension  

The extension cannot be higher than the highest part of the existing roof, or higher at the eaves than the existing eaves. Where the extension comes within 2 meters of the boundary, the height of the eaves cannot exceed 3 meters.  

The 45-degree rule is a common guideline used by local planning authorities. This is to determine the impact from a housing development proposal on sunlight and daylight on the neighbors’ properties. 

Do you need an architect for an extension? 

There’s no law requiring you to hire an architect in any scenario, although having one present on these projects helps ensure you create a safe legal addition to your home.  

Purely as an indication, here is a guide to what architects will charge for drawings at different stages of a project: Cost for architects to draw up planning drawings for planning applications starts from £3,000 for extensions and £4,000 for small scale conversions and from £5,000 for small scale new build schemes. 

Will I need planning permission for extension work? For a full planning application, you will need professional architecture drawings, so the answer would be Yes. Your architect should be able to create your more detailed building regulations drawings and instruct a structural engineer on your behalf. 

Architects’ drawings costs vary from customer and project, you could pay anywhere between £1500 to £7000 for the plans alone. This typically doesn’t include any add-on services like extra revisions, project management services, or any type of construction help.  

15 single storey rear extension ideas under £100,000 | Real Homes
A single storey extension.